Nissan Sentra manuals

Nissan Sentra Service Manual: Dtc/circuit diagnosis

U1000 can comm circuit

Description

Refer to LAN-7, "CAN COMMUNICATION SYSTEM : System Description".

Dtc logic

Dtc detection logic

Consult display

Dtc detection condition

Possible cause

Can comm circuit [u1000] When ipdm e/r cannot communicate with can communication signal continuously for 2 seconds or more In can communication system, any item (or items) of the following listed below is malfunctioning.
  • Transmission
  • Receiving (ECM)
  • Receiving (bcm)
  • Receiving (combination meter)

Diagnosis procedure

1. Perform self diagnostic result

  1. Turn ignition switch on and wait for 2 second or more.
  2. Check “self-diag results” of ipdm e/r.

Is “can comm circuit” displayed? Yes >> refer to lan-16, "trouble diagnosis flow chart".

No >> refer to gi-39, "intermittent incident".

B2098 ignition relay on stuck

Dtc logic

Dtc detection logic

Consult display

Dtc detection condition

Possible cause

Ign relay on [b2098] The ignition relay ON is detected for 1 second at ignition switch OFF (CPU monitors the status at the contact and excitation coil circuits of the ignition relay inside it) coil circuits of the ignition relay inside it) IPDM E/R

Dtc confirmation procedure

1.Perform dtc confirmation procedure

  1. Turn the power supply position to start under the following conditions and wait for at least 1 second.

Cvt model

M/t model

  1. Check “self-diagnostic result” with consult.

Is DTC detected? YES >> Refer to PCS-55, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis procedure

1. Perform self diagnostic result

Perform self diagnostic result of ipdm e/r using consult.

Is display history of dtc b2098 crnt? Yes >> replace ipdm e/r. Refer to pcs-58, "removal and installation".

No >> refer to gi-39, "intermittent incident".

B2099 ignition relay off stuck

Dtc logic

Dtc detection logic

Consult display

Dtc detection condition

Possible cause

Ign relay off [b2099] The ignition relay OFF is detected for 1 second at ignition switch ON (CPU monitors the status at the contact and excitation coil circuits of the ignition relay inside it) IPDM E/R

Dtc confirmation procedure

1.Perform dtc confirmation procedure

  1. Turn the power supply position to start under the following conditions and wait for at least 1 second.

Cvt model

M/t model

  1. Check “Self-diagnostic result” with CONSULT.

Is DTC detected? YES >> Refer to PCS-56, "Diagnosis Procedure".

NO >> Inspection End.

Diagnosis procedure

1. Perform self diagnostic result

Perform Self Diagnostic Result of IPDM E/R using CONSULT.

Is display history of DTC B2099 CRNT? YES >> Replace IPDM E/R. Refer to PCS-58, "Removal and Installation".

NO >> Refer to GI-39, "Intermittent Incident".

Power supply and ground circuit

Diagnosis procedure

Regarding Wiring Diagram information, refer to PCS-49, "Wiring Diagram".

1. Check fuse and fusible links

Check that the following ipdm e/r fusible links are not blown.

Is the fusible link blown?


Is the fusible link blown? Yes >> replace the blown fusible link after repairing the affected circuit.

No >> go to 2

2. Check power supply circuit

  1. Disconnect IPDM E/R connector E42 and E44.
  2. Check voltage between ipdm e/r connector e42 and e44 and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> go to 3

NO >> Repair harness or connectors.

3. Check ground circuit

  1. Turn ignition switch off.
  2. Disconnect ipdm e/r connector e47 and e48.
  3. Check continuity between ipdm e/r connector e47 and e48 and ground.

Is the inspection result normal?


Is the inspection result normal? Yes >> inspection end.

No >> repair harness or connectors.

Wiring diagram
Ipdm e/r (intelligent power distribution module engine room) Wiring diagram ...

Removal and installation
Ipdm e/r Exploded view Ipdm e/r IPDM E/R cover A Ipdm e/r cover b Removal and installation Caution: Ipdm e/r integrated relays are not serviceable and must not be removed from unit. ...

Other materials:

Making a call
To make a call from a phone connected to the vehicle’s Bluetooth® Hands-Free Phone System: NOTE: Available commands different if system is in Manual Control mode. See “Manual Control” in this section for more information. Press the button. The system will prompt you for a command. ...

C1606 EPS Motor
DTC Logic DTC DETECTION LOGIC Dtc Display item Malfunction detected condition Possible cause C1606 EPS MOTOR When the motor driver malfunction of EPS control unit or EPS motor malfunction is detected. Harness or connector EPS motor Eps control ...

P0711 Transmission fluid temperature sensor A
DTC Logic DTC DETECTION LOGIC DTC CONSULT screen terms (Trouble diagnosis content) DTC detection condition Possible causes P0711 FLUID TEMP SENSOR A (Transmission Fluid Temperature Sensor A Circuit Range/ Performance) When any of 1 or 2 is satisfied: ...

© 2014-2020 Copyright www.nisentra.com